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Car Batteries, Power & Battery Accessories

Sometimes your high powered audio systems are going to require too much power than what your normal battery is able to produce. Lucky for you, you will find your ideal high-performance power cells right here as we offer the best car battery prices online. We also carry a large variety of auto accessories and battery chargers to help you with the installation of your high performance 12 volt battery or power cell.

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Stinger SSVLAGU

Stinger Select VL Series 4 or 8 Gauge AGU Fuse Holder

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Stinger Select VL Series 4 or 8 Gauge AGU Fuse Holder

• Stinger Select Premium Series
• Silver Satin Finish
• AGU Fuse

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List price $9.00
-45% $4.99

In stock

Only 3 Left!

• Stinger Select Premium Series
• Silver Satin Finish
• AGU Fuse

T-Spec V12PW-8500

500 ft. (152.40m) 8 Gauge V12 Series Full OFC True Spec Power Wire

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500 ft. (152.40m) 8 Gauge V12 Series Full OFC True Spec Power Wire

• 500 ft. (152.40m) 8 Gauge V12 Series Full OFC True Spec Power Wire
• Exceeds CEA and ANSI Specification for Wire Gauge
• Full Virgin OFC Copper Construction
• Ultra-flexible PVC Blended Jacket
• Color: Matte Silver

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List price $813.00
-62% $310.05

In stock

Only 2 Left!

• 500 ft. (152.40m) 8 Gauge V12 Series Full OFC True Spec Power Wire
• Exceeds CEA and ANSI Specification for Wire Gauge
• Full Virgin OFC Copper Construction
• Ultra-flexible PVC Blended Jacket
• Color: Matte Silver

JL Audio XD-RPW60A-100 Power Wire (Red)

100 Ft. of 60A Oxygen Free Copper Power Wire (Red)

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100 Ft. of 60A Oxygen Free Copper Power Wire (Red)

• 60 Amp capacity
• Pure OFC Copper
• Compact strand orientation and high strand count
• Soft, flexible PVC Jacket

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$449.99

In stock

Only 2 Left!

• 60 Amp capacity
• Pure OFC Copper
• Compact strand orientation and high strand count
• Soft, flexible PVC Jacket

Lowest price in 30 days

XS Power Titan8 (PWR-S5-20QCK)

4000W 6Ah Lithium Titanate Oxide Battery with 12V IntelliCharger

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4000W 6Ah Lithium Titanate Oxide Battery with 12V IntelliCharger

• 12-volt Lithium Racing Battery
• Sealed Lithium Titanate Oxide (LTO) design
• Ideal use for stock or aftermarket alternators
• Includes XS Power Li1208 IntelliCharger

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List price $599.98
-17% $499.98

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Only 1 Left!

• 12-volt Lithium Racing Battery
• Sealed Lithium Titanate Oxide (LTO) design
• Ideal use for stock or aftermarket alternators
• Includes XS Power Li1208 IntelliCharger

Install Bay IBR95

12V Digital Voltage Meter

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12V Digital Voltage Meter

• 12V Voltage Meter
• Digital Display
• Mounts in Dash

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List price $64.99
-11% $57.99

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• 12V Voltage Meter
• Digital Display
• Mounts in Dash

Limitless Lithium Nano-OEM-27AH

14V 27Ah Lithium Iron Phosphate (LFP) Motorcycle and Powersports Battery

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14V 27Ah Lithium Iron Phosphate (LFP) Motorcycle and Powersports Battery

• 14.8-volt Lithium Motorcycle and Powersports Battery
• Sealed Lithium Iron Phosphate (LFP) design
• Perfect for 2000 - 2500 watt audio systems
• Ideal for primary and secondary battery applications
• Compatible with motorcycle and powersports applications

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$499.00

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• 14.8-volt Lithium Motorcycle and Powersports Battery
• Sealed Lithium Iron Phosphate (LFP) design
• Perfect for 2000 - 2500 watt audio systems
• Ideal for primary and secondary battery applications
• Compatible with motorcycle and powersports applications

Stinger SPF52200

Platinum Plated ANL 200 Amp Fuse

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Platinum Plated ANL 200 Amp Fuse

• High Conductivity Platinum Plating
• Maximum Current Transfer
• 200 Amp Rating
• ANL Style Fuse
• 1 Pack

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$9.99

In stock

• High Conductivity Platinum Plating
• Maximum Current Transfer
• 200 Amp Rating
• ANL Style Fuse
• 1 Pack

XS Power PSX30L

32Ah Absorbent Glass Mat (AGM) Powersports Battery

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32Ah Absorbent Glass Mat (AGM) Powersports Battery

• 12-Volt Powersports Battery
• Sealed Absorbent Glass Mat (AGM) design
• Includes M6 terminal hardware
• Extremely lightweight design

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$199.99

In stock

• 12-Volt Powersports Battery
• Sealed Absorbent Glass Mat (AGM) design
• Includes M6 terminal hardware
• Extremely lightweight design

Shuriken SK-BT8785DT-BX

Battery Box for SK-BT8785DT

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Battery Box for SK-BT8785DT

• Protect your battery from heat and keep it in position
• Constructed from heavy gauge steel
• Has holed flanges at the bottom for permanent mounting.

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List price $46.99
-11% $41.99

In stock

• Protect your battery from heat and keep it in position
• Constructed from heavy gauge steel
• Has holed flanges at the bottom for permanent mounting.

XS Power D3400R (Reverse Polarity)

12-Volt Deep Cycle AGM Reverse Polarity Battery Power Cell with 3300-Max Amps for European Vehicles

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12-Volt Deep Cycle AGM Reverse Polarity Battery Power Cell with 3300-Max Amps for European Vehicles

• 12-volt Absorbent Glass Mat (AGM) Battery
• Sealed Absorbent Glass Mat (AGM) design
• Perfect for 2500W car audio stereo systems
• Compatible with most vehicle applications

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List price $469.99
-11% $419.99

In stock

• 12-volt Absorbent Glass Mat (AGM) Battery
• Sealed Absorbent Glass Mat (AGM) design
• Perfect for 2500W car audio stereo systems
• Compatible with most vehicle applications

XS Power 1005

Microprocessor Controlled Multi-Stage 12V/14V/16V Automatic Battery Charger

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Microprocessor Controlled Multi-Stage 12V/14V/16V Automatic Battery Charger

• Multi-Stage Charging
• Output Display
• Internal Cooling Fan
• Voltage Monitoring

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$399.99

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• Multi-Stage Charging
• Output Display
• Internal Cooling Fan
• Voltage Monitoring

Shuriken SK-BT20

12V 20Ah Absorbed Glass Mat (AGM) Rechargeable Battery

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12V 20Ah Absorbed Glass Mat (AGM) Rechargeable Battery

• 12-volt Automotive Absorbed Glass Mat (AGM) Battery
• Sealed Absorbed Glass Mat (AGM) design
• Perfect for 600 watts car audio stereo systems
• Can be mounted in any position
• Can be fully discharged and re-charged

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List price $151.99
-11% $135.99

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Used from: $95.19

• 12-volt Automotive Absorbed Glass Mat (AGM) Battery
• Sealed Absorbed Glass Mat (AGM) design
• Perfect for 600 watts car audio stereo systems
• Can be mounted in any position
• Can be fully discharged and re-charged

Mean Green Alternators MG1399HD

300 Amp High Output Alternator for select 2003-2009 Ram 3500 / 1500 / 2500 and Durango and Durango Hybrid

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300 Amp High Output Alternator for select 2003-2009 Ram 3500 / 1500 / 2500 and Durango and Durango Hybrid

• Easy 5-minute installation
• Compatible with select 2003-2009 Ram 3500 / 1500 / 2500 and Durango and Durango Hybrid Vehicles
• Up to 300% more charging power
• Precision balanced for smooth operation
• Steel rotor shaft
• Heavy duty solid copper starter windings
• Multi-function integrated regulator
• High output alternator

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$719.99

In stock.

• Easy 5-minute installation
• Compatible with select 2003-2009 Ram 3500 / 1500 / 2500 and Durango and Durango Hybrid Vehicles
• Up to 300% more charging power
• Precision balanced for smooth operation
• Steel rotor shaft
• Heavy duty solid copper starter windings
• Multi-function integrated regulator
• High output alternator

XS Power XV4900

1500W 6Ah Lithium Titanate Car Battery for Domestic and European Models

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1500W 6Ah Lithium Titanate Car Battery for Domestic and European Models

• 12 -Volt Car Battery
• Fits in many Domestic and European vehicles
• Fits on models including Land Rover, Audi, GMC and more
• Lithium Titanate battery
• Includes M6 terminal hardware
• Extremely lightweight design

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$499.99

In stock

Only 3 Left!

• 12 -Volt Car Battery
• Fits in many Domestic and European vehicles
• Fits on models including Land Rover, Audi, GMC and more
• Lithium Titanate battery
• Includes M6 terminal hardware
• Extremely lightweight design

Mean Green Alternators MG14573

High Output Alternator for select 1980-1987 Land Cruiser

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High Output Alternator for select 1980-1987 Land Cruiser

• High output alternator
• Compatible with select 1980-1987 Land Cruiser
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

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$579.99

In stock.

• High output alternator
• Compatible with select 1980-1987 Land Cruiser
• Easy 5-minute installation
• Up to 300% more charging power
• Precision balanced for smooth operation

Stinger SHT303

HPM Series Battery Terminal with Two 1/0 or 4ga Outputs

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HPM Series Battery Terminal with Two 1/0 or 4ga Outputs

• HPM Series Battery Terminal with Two 1/0 or 4ga Outputs
• (2) 1/0 Gauge or (2) 4 Gauge outputs
• Ultimate power protection
• Multiple output design
• Corrosion resistant satin chrome finish

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List price $59.00
-44% $32.99

In stock

• HPM Series Battery Terminal with Two 1/0 or 4ga Outputs
• (2) 1/0 Gauge or (2) 4 Gauge outputs
• Ultimate power protection
• Multiple output design
• Corrosion resistant satin chrome finish

Stinger SPC5010

10 Farad Pro Digital Hybrid Capacitor

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10 Farad Pro Digital Hybrid Capacitor

• Digital 10 Farad Capacitor
• Bright Red LED Voltage Display
• Monitor System Voltage
• 12-16 Volt Operation / 18 Volt Surge
• Louder And Cleaner Bass Response

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-54% $339.99

In stock

• Digital 10 Farad Capacitor
• Bright Red LED Voltage Display
• Monitor System Voltage
• 12-16 Volt Operation / 18 Volt Surge
• Louder And Cleaner Bass Response

XS Power Titan8 (PWR-S6-3400) (Open Box, Great)

6000W 10Ah Lithium Titanate Oxide (LTO) Battery

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6000W 10Ah Lithium Titanate Oxide (LTO) Battery

• 14-volt Lithium Battery
• Sealed Lithium Titanate Oxide (LTO) design
• Perfect for up to 6000-watt audio systems

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List price $699.99
-30% $489.99

In stock

Only 1 Left!

• 14-volt Lithium Battery
• Sealed Lithium Titanate Oxide (LTO) design
• Perfect for up to 6000-watt audio systems

NVX BIR80

80-Amp High Current Dual Battery Isolator and Relay for Car Audio Systems (Handles up to 150-Amp Surge)

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80-Amp High Current Dual Battery Isolator and Relay for Car Audio Systems (Handles up to 150-Amp Surge)

• 80-Amp continuous / 150-Amp surge
• Ideal for car stereo systems and mobile electronics
• Prevents the main starter battery from draining
• 10V to 16.5V DC operating range

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-20% $15.99

In stock

Like New from: $13.59

• 80-Amp continuous / 150-Amp surge
• Ideal for car stereo systems and mobile electronics
• Prevents the main starter battery from draining
• 10V to 16.5V DC operating range

NVX XW0BK5

5 ft 1/0-Gauge EnvyFlex True Spec Oxygen-Free Copper Power and Ground Wire (Black)

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5 ft 1/0-Gauge EnvyFlex True Spec Oxygen-Free Copper Power and Ground Wire (Black)

• 5 feet 1/0 gauge Power and Ground Wire
• Silver-tinned OFC (100% Oxygen-Free Copper) material
• Color: Black

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-33% $39.99

In stock

• 5 feet 1/0 gauge Power and Ground Wire
• Silver-tinned OFC (100% Oxygen-Free Copper) material
• Color: Black

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    FAQ Frequently asked questions in Car Batteries, Power & Battery Accessories


    Car batteries, power, and battery accessories are crucial components for any vehicle.

    Car Batteries: These are rechargeable devices that store electrical energy in a chemical form, converting it into electrical power to start your vehicle's engine and power various electrical systems. They are essential because they provide the initial jolt of electricity needed to start the engine and continue to supply power when the alternator isn't running, such as when the engine is off.

    Power Accessories: These include alternators and generators, which recharge the battery and supply power to the vehicle's electrical systems while the engine is running. Voltage regulators ensure a stable supply of electrical power, preventing overcharging. Without these components, your vehicle's battery would eventually run out of power, leaving you stranded.

    Battery Accessories: These encompass components like battery terminals, cables, and connectors. Properly maintained connections are essential for the efficient flow of electrical power within your vehicle. Corroded or loose terminals can lead to poor electrical performance and starting issues.

    In summary, car batteries, power, and battery accessories are essential because they provide the electrical energy needed to start your vehicle, keep it running, and operate various electrical systems, ensuring your vehicle functions properly and reliably.

    Selecting the correct battery terminal involves considering the type of battery and the cable connection you have. First, determine if you have a top-post or side-post battery, as different terminals are designed to fit each type. Next, identify the cable size (usually stated in gauge) to ensure the terminal can accommodate the cable diameter properly. Look for high-quality materials such as copper or brass terminals, as they provide excellent conductivity and resist corrosion. Some terminals also come with additional features, like multiple connection points for additional accessories. It's crucial to choose a terminal that matches your battery and cable specifications to ensure a secure and reliable electrical connection.
    Yes, a battery disconnect switch is an effective way to prevent battery drain when your vehicle is not in use for an extended period. When the switch is in the ""off"" position, it completely cuts off power flow from the battery to the vehicle's electrical system. This prevents any parasitic draws or power-consuming devices from draining the battery during storage or inactivity. Battery disconnect switches are particularly useful for seasonal or seldom-used vehicles, such as boats, RVs, or classic cars. By using a disconnect switch, you can preserve the battery's charge and extend its lifespan, ensuring it remains ready to start your vehicle when needed.
    A battery charger or maintainer helps prolong the life of your car battery by ensuring it remains adequately charged, especially during periods of inactivity. When a vehicle is not driven regularly, the battery can gradually lose charge due to natural self-discharge and parasitic draws. Battery chargers and maintainers are designed to provide a steady and controlled flow of current to the battery, replenishing any lost charge. This prevents the battery from fully discharging, which can lead to sulfation and reduced battery capacity. Additionally, some smart chargers have maintenance modes that automatically adjust the charging rate to keep the battery at an optimal charge level without overcharging it. By keeping the battery in good condition and fully charged, a battery charger or maintainer helps extend its overall lifespan and ensures reliable performance.
    Yes, safety is essential when working with car battery accessories. Before attempting any installation or maintenance, always disconnect the vehicle's negative battery terminal to avoid accidental electrical shocks or short circuits. When working with battery terminals, wear appropriate safety gear, such as gloves and eye protection, to protect against battery acid and corrosion. Ensure all connections are tight and secure to prevent power loss or electrical hazards. When using battery chargers or maintainers, follow the manufacturer's instructions carefully and avoid overcharging the battery. Overcharging can lead to hydrogen gas buildup, which is flammable and poses a safety risk. It's also crucial to work in a well-ventilated area to dissipate any battery gases safely. If you are unsure or uncomfortable with any aspect of the installation or maintenance, it's best to seek professional assistance to ensure proper and safe operation of your car battery accessories.

    All About

    Car Batteries, Power & Battery Accessories
    Car Batteries & Power Cells: For those that are looking to install some moderate to high powered aftermarket audio equipment in their car, it is smart to supplement the vehicles electrical system with a secondary car battery or power cell. It is important to make sure that the new car audio system will not place too much stress on the electrical system. Many times, dimming lights can be a great indicator that the electrical system needs to be upgraded. A great place to start is by replacing the starting battery with a more powerful auto battery. If more power is still needed, then it is recommended that a secondary battery be installed in the car. Here you will find our selection of high performance car batteries, power cells, battery isolators, and more. To find out more about car audio batteries, power cells, isolators, call our friendly support team at 1-877-289-7664.

    Looking to enhance your car's battery performance and optimize your car audio system? Look no further! Sonic Electronix offers a wide range of top-quality car battery accessories that ensure reliable power supply and improved audio performance. Discover the best car battery accessories on this page and take your car audio experience to new heights!

    Car Battery Accessories - Empowering Your Vehicle's Electrical System

    Car battery accessories play a crucial role in supporting your car's electrical system and ensuring a smooth and efficient power flow. These accessories are designed to optimize your car battery's performance and enhance the overall functionality of your vehicle's electrical components.

    One of the primary car battery accessories is the battery terminal. High-quality battery terminals provide a secure connection between your car's battery and the power cables, reducing the risk of power loss and voltage drops. Upgrading to heavy-duty battery terminals improves conductivity, reduces resistance, and maximizes the efficiency of your car's electrical system.

    Another essential car battery accessory is the battery isolator. This device allows you to connect multiple batteries to your car's electrical system while preventing power drain from one battery to another. A battery isolator ensures that each battery serves its intended purpose and remains fully charged, making it ideal for vehicles with multiple batteries, such as RVs and marine applications.

    Expert Assistance - Your Trusted Car Audio Advisors

    At Sonic Electronix, we are dedicated to providing our customers with the best car battery accessories tailored to their unique needs. Our team of car audio experts is readily available to assist you in finding the perfect battery accessories to complement your car audio setup. Whether you need help choosing the right battery terminal or battery isolator, we have the knowledge and expertise to guide you through the selection process.

    Feel free to call us at 1-502-200-8010, and our friendly and experienced staff will be delighted to answer your questions, offer recommendations, and ensure you have a seamless shopping experience.

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    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
    • You get the correct accessories the first time

    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.